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comparison gcc/testsuite/gcc.dg/pr23584.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* Regression test for PR middle-end/23584 */
2 /* Verify that dereferencing an absolute address inside of a function
3 makes that function impure. */
4
5 /* { dg-do compile } */
6 /* { dg-options "-O1 -fdump-ipa-pure-const" } */
7
8 int test1 (void)
9 {
10 return * (volatile int *) 0x1234;
11 }
12
13 int test2 (void)
14 {
15 int local = * (volatile int *) 0x1234;
16 return local;
17 }
18
19 /* { dg-final { scan-ipa-dump-not "found to be pure: test1" "pure-const" } } */
20 /* { dg-final { scan-ipa-dump-not "found to be pure: test2" "pure-const" } } */